exrate MCP server — central bank rates for AI assistants

Setup

Claude Desktop

{
  "mcpServers": {
    "exrate": {
      "type": "http",
      "url": "https://mcp.banks-rates.com/"
    }
  }
}

Claude Code

# transport must be http (Streamable HTTP)
claude mcp add --transport http exrate https://mcp.banks-rates.com

Cursor

// Cursor → Settings → MCP → Add Server
// Transport: HTTP   URL: https://mcp.banks-rates.com/

The transport is Streamable HTTP; the server URL is the same across every MCP-compatible client: https://mcp.banks-rates.com/.

Authentication & limits

The server works without authentication at the free per-IP limits (12 requests/hour, 256/day). For higher limits (16/min, 800/hour, 16k/day), issue an API key in the console and add it as a bearer header:

# optional: a console API key for higher limits
claude mcp add --transport http exrate https://mcp.banks-rates.com \
  --header "Authorization: Bearer brk_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"

No OAuth is required. When a limit is hit the tool result reports a rate_limited error.

What your AI can do with this MCP

• get_rate — convert an amount at a bank's official rate for any date, with the previous business day's value.
• cross_rate — convert between two currencies via a bank's national currency.
• rate_series — a historical daily series for a bank + currency over a date range.
• list_banks — every supported central bank and its code.
• bank_detail — a bank's published currencies, schedule and available history range.
• bank_status — per-bank freshness: latest rate date, currency count and updated-at timestamp.

Example prompts

• "What was the NBP rate for 100 USD on 2024-03-15? Use the previous business day if it wasn't quoted."
• "Compare today's USD/PLN rate at NBP, ECB and CNB."
• "Pull a 90-day series for EUR/CZK at CNB and tell me the volatility."
• "For each central bank, give me today's USD rate."

Frequently asked questions